YLF Isomorphs for Ho and Tm Laser Applications

A quantum mechanical model describing the energy levels and transition probabilities of lanthanide series elements in laser materials was used to assess the laser possibilities of Ho and Tm in YLF isomorphs. Known X-ray parameters of YLF and its isomorphs as well as known energy levels of Ho and Tm in YLF were used to determine the energy levels and transition probabilities in YLF isomorphs. With this, a figure of merit can be defined to select the best candidate laser material for both Ho and Tm.